Three wheel drive vehicle

A motor vehicle having a pair of front drive wheels and a rear steerable drive wheel mounted on a main frame. A sub-frame secured to the main frame intermediate the front and rear drive wheels carries an internal combustion engine and a pump assembly.

The pump assembly has a first pump operable to deliver fluid under pressure to fluid operated motors operably connected to the front drive wheels and a second pump operable to deliver fluid under pressure to a fluid operated motor operably connected to the rear drive wheel.
The internal combustion engine and pump assembly are located below a seat and floor with both the engine and pump assembly positioned transversely of the main frame of the vehicle.

The rear wheel is mounted on the frame for angular movement about a generally upright axis.

A fluid operated double acting piston and cylinder assembly operates to angularly move the rear wheel about the upright axis to steer the vehicle.

Three wheel drive vehicle

The invention relates to a land motor vehicle, as a tractor, truck, utility vehicle, or the like, having first drive wheel means and second drive wheel means concurrently driven by separate fluid operated motors. First and second fluid circuits carry fluid from separate pumps to the motors. Means having fluid restricting means interconnect the fluid circuits to allow the vehicle to make sharp turns without the use of wheel brakes. Longitudinal side beams extend along opposite sides of the vehicle. One of the drive wheel means is pivotally mounted to a portion of the vehicle frame for angular movement about a generally upright axis. Fluid power means operates to angularly move said one wheel means about the upright axis to steer the vehicle. The separate pumps and means for driving the pumps are mounted on a sub-frame carried by the longitudinal side beams. The means for driving the pump assembly is an internal combustion engine having a drive shaft operatively coupled to the driven shaft of the pumps with a power transmitting means. Mounts having resilient cushions connect the sub-frame to the longitudinal side beams to facilitate the installation and removal of the sub-frame, pumps, and engine as a unit from the vehicle.

Three wheel drive vehicle

Three wheel drive vehicle - Three-wheeled motor vehicle - Three-wheeled automobile

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